Cartridge.



Patenied July 2, l90l.

ATTORNEY MBY H. MAXIM.

CARTRIDGE.

(Application filed'Apr. 19, 1901 TRENORRIS PETERS 5a., wn'snmoran, a. c.

(No Model.)

WITNESSES:

- .nunsonlMAXIM,:orBRooKLYN,--New ORK. i

i ljl SPECIFICATION- fornciing-part o f Letters meab .-e7"7,52,:emissary 2', 1eci-.--

To all whom it'mayc oiwcrrtl 'a new and usef'ullmproi emen tinCartridges, which inventionv is fully lowing specification? rangement ofsaid lateral vents being such as v to secure the simultaneous completionof combustion throughout'the charge. In the pres cnt invention I form acartridge charge of a plurality of concentric cylinders, each of whichmay be provided with lateral ventchannels, affording an escape for thegases in alateral direction, and the additional burning-surfaces, as inthe application referred to, and I also divide the cylinderlongitudinally,

the lines of division being so arranged as to break joints. Withcylinders thus composed of longitudinal sections the internal pressureof the gases of combustion will cause the sections to spread or expandrad ially, thereby openingthe joints between the several sections ofanygiven cylinder and aifording lateral vents for the gases withinfthecylinder and exposing the surface of the joints to the flame ofignition; with this construction the necessary lateral venting to avoiddisruption of the charge is' secured even in' the absence of lateralperforations, as well as the simultaneous completion of combustion ofthe entire mass of explosive. It is desirable,'however, to provide suchlateral perforations in many instances,

as well as cells or holes in the walls of the,

. r g yl der .i 'h' h' s' Be it known that I, HlIDSQNl/IAXIM, a resident'of Brooklyn, New York, pers s n e 1 set forth in th'e fol 'in jwhichf-In my application, Serial No. 728304;, filed. August 24, 1809,. ofwhichthe, prese ntappli rokii'. eti'jdn, cation is a division, I'havedescr bed a charge ,the same-radial plane.

It will be apparentthat hikedlint. way thronghthc same.

I t e nr 'n't rf l were mace vario'u's' mechanicalexpressionswneefwhichv I have shown in theaccoinpanying drawings,

.eeaws; e11; Q5 c a ges 'expl sir ma? terial formed according to thetion. Fig. 2- is a View similar to Fig. 1, show ing a charge composed ofbut two'concentrio cylinders having thicker walls. Fig. 3 shows one ofthe longitudinal sections into which each cylinder is divided, and Fig.{L is a side elevation of Fig. 1. v

Referring to the drawings, 1 indicatesa pludivided into longitudinalsections 2, with the joints 3 between the sections soarranged thatjoints of adjacent cylinders shall not'lie in By this arrangement Ibreak the joints between the sections of the adjacent cylinders.

As shown in-Figs. 2 and '3, each of the ion- .gitudinal sections 2isprovided with a pin ralityof lateral perforations 4, preferablyextending radially through the section, and a plurality of cells 5',also extending, by preference, in a radial direction into but notthrough the body of the sections 2. In Fig. 1 I have shown the radialperforations 4; without the present'i riyenl' rality'of concentriccylinders, each of which is cells, the walls of the several cylinders inthis case being so thin that the-adjacent radial perforations aresubstantially the same dis- 5 tance apart as their inner and outer ends,and hence the cells are not needed. The perforations 4 act not only aslateral vents, but also adord additional burning-surfaces, while thecells 5 act onlyto'increase the burning-surface, Since both theperforations 4 and the cells 5 adord burning-surfaces, it'is desirablethat they'should beso arranged with relation to each other a'snot tointerferewith thesim'ultaneons completion of combustionthronghout themass of the charge, and for this reason the cells dand' perforations areuniformly distributed, so as to provide substantially equal thicknessesof material between each cell or perforation and adjacent cells orperforations, For the purpose {of securing provided 15' tions.

the several sectional cylinders assembled as shown in Figs. 1 and 2 theymay be bound by cords 6 or secured in any suitable manner.-

It will be obvious that a charge formed as 5 herein described will beone of great cornpactness, thereby securing greater density of loading,and that the charge will possess sufificient rigidity to-carry theprojectile, if desired.

oE concentric tubes of smokeless powder each of which tubes is built upof a plurality of longitudinal sections provided withuniformlyrgdisposed transverse perforations.

2. An exploslve charge having a plurality of concentric tubesofexplosive material 1 each of which tubes is built up of aplnrality oftransversely-perforated longitudinal sec- 20110115.. g I 3. In anexplosive charge a cylindrical mass of explosive materialdivided byradial planes into longitudinal sections, which sections are 1. Anexplosive charge having a plurality the tubes for the flame of ignition,said tubes or cylinders being divided into a plura1ity; 35

of transversely-perforated longitudinal sectieus.

; of concentric, laterally-vented tubes or cylininders are dividedintofa plurality of. longitudinal sections; l

'In. testimony whereof I have signed this specification in the presenceof two subscrib-- ing' witnesses.

. "HUDSON MAXIM. Witncsses: I

with transverse orlateral perfora- EDWARD Lyons, LILIAN MAXIM.

6. An explosive charge having a plurality,

' ders of explosiveni-aterial which tubes orcyl- 4o

